Finding the Fourth Proportional to 12,200.96, 18,297.32 and 3,433.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,200.96 : 18,297.32 = 3,433.79 : x
2. Step 2: Convert to fraction form
   12,200.96/18,297.32 = 3,433.79/x
3. Step 3: Cross multiply
   12,200.96x = 18,297.32 × 3,433.79
4. Step 4: Simplify right side
   12,200.96x = 62,829,045.79
5. Step 5: Solve for x
   x = 62,829,045.79/12,200.96
6. Step 6: Final answer
   x = 5,149.52